Attention! Your ePaper is waiting for publication!
By publishing your document, the content will be optimally indexed by Google via AI and sorted into the right category for over 500 million ePaper readers on YUMPU.
This will ensure high visibility and many readers!
Your ePaper is now published and live on YUMPU!
You can find your publication here:
Share your interactive ePaper on all platforms and on your website with our embed function
SG (Slot)
SG (Slot)
SG (Slot)
- No tags were found...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
These Proceedings are published by the Organizing Committees of the 12th International Conference of the International Soil Tillage Research Organization INTERNATIONAL ORGANIZING COMMITTEE (The Ohio State University, Columbus, Ohio) LOCAL ORGANIZING COMMITTEE (Nigeria) Chairman: Dr. F. P. Miller, Chairman, Department of Agronomy Chairman: Dr. 0. Babalola, Head, Department of Agronomy, University oflbadan, Nigeria Secretary: Treasurer: Member: Member: Dr. R. Lal, Professor, Department of Agronomy Secretary: Dr. M. Swift, Coordinator, Resource Management, liT A, PMB 5320, lbadan, Nigeria Dr. D. E. Hansen, Director, International Programs, College of Agriculture Members: Dr. P.R. Maurya, JAR/ABU PMB 1044, Zaria, Nigeria Dr. I. Mowoe, Director, Center for African Studies Dr. H. Gauthier, Acting Vice Provost, International Affairs Dr. K. C. Oni, Agricultural Engineering Department, University of Ilorin, Ilorin, Nigeria Dr. 0. Opara-Nadi, Imo State University, PMB 2000, Okigwe, Nigeria Dr. P. 0. Aina, Obafemi Awolowo University, Ile-Jfe, Nigeria OFFICERS OFISTRO President: Secretary·General: Professor R. Lal, USA Jr. C. Van Ouwerkerk, The Netherlands Assistant Secretary General: Jr. F. R. Boone, The Netherlands Treasurer: Past President: Member: Member: Member: Dr.Ir. J. K. Kouwenhoven, The Netherlands Dr. B. D. Soane, Scotland Professor Dr. A. Butomc, Yugoslavia Professor Dr. P. H. Groenevelt, Canada Dr. W. B. Voorhees, USA \ II/
- Page 4 and 5: Table of Contents Section 1. Soil R
- Page 6: Contents (continued) Erosion Losses
- Page 10 and 11: DEGRADATION OF PHYSICAL SOIL FERTIL
- Page 12 and 13: The design was set out so that the
- Page 14 and 15: BIBLIOGRAPHIE Billot J. F., Macionn
- Page 16 and 17: Table 3: Comparison of yield. - Con
- Page 18 and 19: .:·t-~~~~~~--~~~~~~~~~ so 10 " "
- Page 20 and 21: G 4 I The subao rr • iler 13
- Page 22 and 23: Table 1: Effect of Increased·Potas
- Page 24 and 25: Discussion and Conclusion: The resu
- Page 26 and 27: TILLAGE METHODS IN SALT AFFECTED SO
- Page 28 and 29: is a part of a wider study carried
- Page 30 and 31: 1.5 mm/h 1.2 0.9 0 .. 6 0.3 ' ~ (a)
- Page 32 and 33: vir: physico-chemical properties an
- Page 34 and 35: commonly well below the potential y
- Page 36 and 37: 3. Results and Discussion 3a. Minni
- Page 38 and 39: added salt and boron treatments sig
- Page 40 and 41: Brasher, B.R., Franzmeier, D.P., Va
- Page 42 and 43: Sandy clay loam, surface layer Heav
- Page 44 and 45: o.• e 0.32 -... e ,!;, ,.. 0.2- H
- Page 46 and 47: from 7.0 t/ha in the control to 11.
- Page 48 and 49: direction of wheeling 1.5 -N 0 .-)(
- Page 50 and 51: Blackwell, P.S., Jayawardane, N.S.,
- Page 52 and 53:
(Table 1). The bulk density of 10-2
- Page 54 and 55:
Table 5. Water stable aggregates(%)
- Page 56 and 57:
Penetration resistance was generall
- Page 58:
Section 2 Soil Chemical Properties
- Page 61 and 62:
1970, Jones, 1971, Shipley and Rieg
- Page 63 and 64:
Partially attributed to surface bro
- Page 65 and 66:
IITA, Ibadan, Nigeria. Lal, R. and
- Page 67 and 68:
Table IV. Effect of tillage on some
- Page 69 and 70:
Table VIII. Effect of crop residue
- Page 71 and 72:
conducted !.'~i thin Etn e:-~per i
- Page 73 and 74:
Ex ami nation of the ear·thworm da
- Page 75 and 76:
al., 1990). Figure.i shows a popula
- Page 77:
Yule, D. F., Smith, G. D. and Georg
- Page 80 and 81:
studied on corn under dryland condi
- Page 82 and 83:
effect was not reflected in grain.
- Page 84 and 85:
REFERENCES Bandel, V.A., 1979. Nitr
- Page 86 and 87:
TABLE 1. Effect of tillage on growt
- Page 88 and 89:
TABLE 3. Effect of fertilizer nitro
- Page 90 and 91:
(usually by root uptake) can furthe
- Page 92 and 93:
Other nutrie_nts, particularly K ma
- Page 94 and 95:
are present, a portion may be immob
- Page 96 and 97:
concentration at the surface may pr
- Page 98 and 99:
Mengel, D.B., D.W. Nelson, and D.M.
- Page 100 and 101:
influenced the major components esp
- Page 102 and 103:
100 Tillage § >200 mm IJ) Q) 80 ~S
- Page 104 and 105:
There was an adverse effect of adop
- Page 106 and 107:
CROP RESIDUE DECOMPOSITION UNDER CO
- Page 108 and 109:
Residue decomposition Results and D
- Page 110 and 111:
and residue N remaining at day 112
- Page 112 and 113:
Table 2. Selected legume and non-le
- Page 114 and 115:
40r----~~[l] C. dover 3D 0 !m ~ 10
- Page 116 and 117:
DEFLATION LOSSES OF HUMUS AND NUTRI
- Page 118 and 119:
1960-1909. Fig. 2. Content oscillat
- Page 120 and 121:
Table 2. Readily available pho~phor
- Page 122 and 123:
Intensive ag~icultu~al p~oduction i
- Page 124 and 125:
Section 3 Soil Physical and Mechani
- Page 126 and 127:
SOIL PHYSICAL PROPERTIES! BEFORE AN
- Page 128 and 129:
MATERIALS AND METHODS The research
- Page 130 and 131:
some variation among the plots befo
- Page 132 and 133:
Table 1. Information regarding the
- Page 134 and 135:
Table 5. Effect of tillage and dept
- Page 136 and 137:
EFFECTS OF TILLAGE METHODS ON SOIL
- Page 138 and 139:
In 1990, the MTM treatment was with
- Page 140 and 141:
the surface and sub-surface soil. B
- Page 142 and 143:
cone index is also a sensitive indi
- Page 144 and 145:
Fig.2: Effects of Tillage (•) 198
- Page 146 and 147:
(DH3) increased bean yields by 126%
- Page 148 and 149:
COMPARISON OF ROW-TILLAGE WITH NO-T
- Page 150 and 151:
R~SULTS AND DISCUSSION Preclearing
- Page 152 and 153:
Table V: Treatment Manual clearing
- Page 154 and 155:
EFFECT OF SUGARCANE PERMANENCE TIME
- Page 156 and 157:
Before experiment installation, the
- Page 158 and 159:
' l 1 l _; '1 Ap 1 HORIZON Ap,HORIZ
- Page 160 and 161:
density remains constant) but produ
- Page 162 and 163:
19. Ricaud, H. (1977). Effect of su
- Page 164 and 165:
5 4 1 ! 1 x----x e········
- Page 166 and 167:
0.85 9.0 C 1min 0.79 8.0 NO NO Q. '
- Page 168 and 169:
0 'E ~ -20 2 ~ -40 r- 2l -60 .c r-
- Page 170 and 171:
m "' g '•' ,•, ·.· ·:· •,
- Page 172 and 173:
32 "' "' 8 g> 28 ~ c: 0 ~ 24 ~ .~ 2
- Page 174 and 175:
Table 2: The angle of internal fric
- Page 176 and 177:
Dawidowski, J.B. and Koolen, A.J.,
- Page 178 and 179:
In. each soil unit, soil profiles l
- Page 180 and 181:
REFERENCES Chudecki, z. and Niedzwi
- Page 182 and 183:
Soil Utilization Genetic Horizons D
- Page 184 and 185:
consumption and soil failure patter
- Page 186 and 187:
60 so MC =50% 60 so MC = 4~% (In wa
- Page 188 and 189:
3, Soil bending experiments These e
- Page 190 and 191:
1) 3) ( centre rotor blade of rotat
- Page 192 and 193:
Acknowledgements The authors gratef
- Page 194 and 195:
where 0 • volumetric water conten
- Page 196 and 197:
Undisturbed soil samples of soils s
- Page 198 and 199:
102 ~ • ""0 * E 101 .2 ~ ·;; n :
- Page 200 and 201:
demonstrated in Fig. 7 for the same
- Page 202 and 203:
• on where c = cohesion and ~ = a
- Page 204 and 205:
500 ... 400 Ls3, subangulor-blocky
- Page 206 and 207:
Table 2: Comparison of the degrees
- Page 208 and 209:
100 ~ "' .s " ~ 80 I l Ill 60 40 20
- Page 210 and 211:
CONCLUSIONS Soil strength, that is
- Page 212 and 213:
Introduction Due to the development
- Page 214 and 215:
n undisturbed sample ~ homooenized
- Page 216 and 217:
soils dry to a greater extent and d
- Page 218 and 219:
lug effect (Hornet al., 1989) but t
- Page 220 and 221:
The higher the latter value is, the
- Page 222 and 223:
•LL a. 1.2 2.< t,---A------; :::
- Page 224 and 225:
Wurzeldichte auf die Wasseraufnahme
- Page 226 and 227:
Section 4 Soil Compaction 219
- Page 228 and 229:
I THREE INDICES FOR ASSESSING TILLA
- Page 230 and 231:
shovel and their bottom ends trimme
- Page 232 and 233:
REFERENCE Arnold, F.B. and Sojka, R
- Page 234 and 235:
BULK DENSITY (M9 m-3 } 0 0·1 0·2
- Page 236 and 237:
THE INFLUENCE OF HACHINE TRAFFIC ON
- Page 238 and 239:
supplied, and manual Heeding \·las
- Page 240 and 241:
0'Neil 1 K.J, and Carr0\·1 1 R.N.
- Page 242 and 243:
Hil 1-40 LffiENP Zero pass o. 2 pas
- Page 244 and 245:
100 170 , l.B3EWJ (A) • ~ro q &>
- Page 246 and 247:
characteristics of soils that affec
- Page 248 and 249:
The results of plant without gr~in
- Page 250 and 251:
envisaged that further work in this
- Page 252 and 253:
Raghavan, G. s. v., McKyes, E., Gen
- Page 254 and 255:
SUBSOIL COMPACTION EFFECTS ON SOIL
- Page 256 and 257:
The general increase in soil bulk d
- Page 258 and 259:
TABLE III Effect of wheel traffic a
- Page 260 and 261:
EFFECT OF TRAFFIC INTENSITY ON SOIL
- Page 262 and 263:
Measurements on root distribution I
- Page 264 and 265:
TABLE 1 Pore space, and moisture an
- Page 266 and 267:
z gap between beds 40 ·.··.·.
- Page 268 and 269:
TABLE 4 Coefficients of variation (
- Page 270 and 271:
TOP SOIL AND CROP RESPONSES TO A LO
- Page 272 and 273:
Tillage system The usual tillage re
- Page 274 and 275:
Table 4: Total pore space (% v/v) a
- Page 276 and 277:
The weight of the 10 largest clods
- Page 278 and 279:
Discussion Differences in soil surf
- Page 280 and 281:
In August, after the barley harvest
- Page 282 and 283:
TABLE III. Yield of cereal grains i
- Page 284 and 285:
SOIL STRENGTH AS INFLUENCED BY TEXT
- Page 286 and 287:
Shear strength, kPa 50 Shear streng
- Page 288 and 289:
change In water potential. These ob
- Page 290 and 291:
while the latter two treatments cou
- Page 292 and 293:
Section 5 Soil Machinery 285
- Page 294 and 295:
AN EVALUATION OF DIRECT SEEDING USI
- Page 296 and 297:
A 4 m-wide Moore 11 Uni-drill® 11
- Page 298 and 299:
Table 1. Continued Treatment Site Y
- Page 300 and 301:
Table 2. Continued Treatment Site Y
- Page 302 and 303:
Table 3. Continued Treatment Site Y
- Page 304 and 305:
Henderson, C., 1989. Soil structure
- Page 306 and 307:
CUTIING EDGE GEOMETRY AND THE FORCE
- Page 308 and 309:
TABLE I GEOMETRIES OF THE EXPERIMEN
- Page 310 and 311:
vertical slider for measurement of
- Page 312 and 313:
length of Underside Rub The results
- Page 314 and 315:
TILLAGE TEST TRACK ·10 TILLAGE TES
- Page 316 and 317:
ABSTRACT BREAK-UP OF HEAVY CLAY SOI
- Page 318 and 319:
check same result. The holes or the
- Page 320 and 321:
_fl.'l 0 ~123 (;~) 1,4m Photo 3 A m
- Page 322 and 323:
lasting In rocks. Here, we modified
- Page 324 and 325:
2. Araya K. et al. 1988. Break-up o
- Page 326 and 327:
of subsidary-boat with a larger tou
- Page 328 and 329:
.. j li (q •0,017kgf/cm 2 ,n-5
- Page 330 and 331:
]1 •. ~13 ~ 1 2
- Page 332 and 333:
ding board bears the most of the we
- Page 334 and 335:
INFLUENCE OF FURROW PRESS ON SOIL P
- Page 336 and 337:
Table 3. Relative yield of the trea
- Page 338 and 339:
tractors during seedbed preparation
- Page 340 and 341:
Section 6 Farming Systems 333
- Page 342 and 343:
CONSERVATION TILLAGE IN THE HUMID T
- Page 344 and 345:
The first corn (cv. Marginal 28) cr
- Page 346 and 347:
treatments. at the 0-10 differences
- Page 348 and 349:
Soybean yields tended to be higher
- Page 350 and 351:
Tawonmas, D., s. Panichakul, s. Rat
- Page 352 and 353:
slot, trench or band only of suffic
- Page 354 and 355:
and minimum tillage as compared to
- Page 356 and 357:
Net Benefit (US$) 250~--------~----
- Page 358 and 359:
Triplett, G.B. 1978. l~eed control
- Page 360 and 361:
and May 1950 while 4309 mm fell in
- Page 362 and 363:
forests estimates of soil loss was
- Page 364 and 365:
inaccessible by road and thus non m
- Page 366 and 367:
Indian farmers as a stable for food
- Page 368 and 369:
Cook Is., Tonga, Niue and Fiji acco
- Page 370 and 371:
Table 1 Physical and Chemical Prope
- Page 372 and 373:
treatment. These percentages are gr
- Page 374 and 375:
Braunack, M.V. and McPhee, J.E. (19
- Page 376 and 377:
D.. 0 0:: t..) "' U) >- 0 U) "' UJ
- Page 378 and 379:
EFFECT OF SEEDBED PREPARATION HETHO
- Page 380 and 381:
1989-90 dry season soil temperature
- Page 382 and 383:
4. Ridges were, in general, wetter
- Page 384 and 385:
Table 1. Effect of seedbed preparat
- Page 386 and 387:
Table 3. Effect of seedbed preparat
- Page 388 and 389:
SOIL TEMPERATURE AT 0.05M DEPTH (
- Page 390 and 391:
oor--------------------------------
- Page 392 and 393:
production, there is a need to deve
- Page 394 and 395:
TABLE 1, Treatments Designation A B
- Page 396 and 397:
TABLE 6. Analysis of variance table
- Page 398 and 399:
TABLE 9. cowpea grain and straw yie
- Page 400 and 401:
Lal, R., 1989. Agroforestry systems
- Page 402 and 403:
imposed were: hoeing a O.Sm wide st
- Page 404 and 405:
competition for water, nutrients, a
- Page 406 and 407:
Table 1. Results of analysis of var
- Page 408 and 409:
Table 3. Effect of method of seedbe
- Page 410 and 411:
Removal of excess water in the Ethi
- Page 412 and 413:
Table 1 ~ Direct and residual effec
- Page 414 and 415:
Table 2. Direct and residaal effect
- Page 416 and 417:
strengthened by including an agrono
- Page 418 and 419:
y contour ridges, storm drains and
- Page 420 and 421:
RESULTS Table 1 MAIZE YIELDS 1989/9
- Page 422 and 423:
DISCUSSION AND CONCLUSIONS The resu
- Page 424 and 425:
CONSERVATION TILLAGE FOR SMALL-SCAI
- Page 426 and 427:
latter two treatments were expected
- Page 428 and 429:
the rainfall season after the crop
- Page 430 and 431:
physiological maturity. The consequ
- Page 432 and 433:
CONCLUSIONS The results obtained so
- Page 434 and 435:
FALLOWING PRACTICES FOR EFFICIENT W
- Page 436 and 437:
The increased supply of plant·avai
- Page 438 and 439:
Table 2 Effect of fallow management
- Page 440 and 441:
RESEEDING OF CRIMSON CLOVER, AND IT
- Page 442 and 443:
Soil samples were collected at plan
- Page 444 and 445:
while it increased at Plains, as di
- Page 446 and 447:
Table 1. Reseeding of clover as inf
- Page 448 and 449:
Table 3. Percent soil carbon (0 •
- Page 450 and 451:
EFFECTS OF REDUCED TILLAGE ON FERRA
- Page 452 and 453:
The maize plots (the Kenyan hybrid
- Page 454 and 455:
Table 3. Basic soil tillage (A) Mai
- Page 456 and 457:
Table 4. Soyabean grain yield (t/ha
- Page 458 and 459:
statistically significant at the LS
- Page 460 and 461:
WEED ROTATION AND MECHANICAL CONTRO
- Page 462 and 463:
and matching of combines has to foc
- Page 464 and 465:
Interplanting in rows like short-st
- Page 466 and 467:
MECHANICAL WEED CONTROL I direct ef
- Page 468 and 469:
Extraction of weeds in combination
- Page 470 and 471:
4.3 Soil effect Any- cultivation be
- Page 472 and 473:
Frequ&ncy DistribUtion 100 • 80 6
- Page 474 and 475:
6. LITERATURE [ 1) Petzold, K: Wirk
- Page 476 and 477:
Section 7 Soil Erosion 469
- Page 478 and 479:
POSSIBILITIES OF SOIL CONSERVATION
- Page 480 and 481:
shown in Graph 1. The first year (1
- Page 482 and 483:
REFERENCES: AbujaminS. andSofijah (
- Page 484 and 485:
TaMe 1. Climatic features of the Ho
- Page 486 and 487:
Table 5. Statistical analysis of ER
- Page 488 and 489:
SOIL PHYSICAL AND CHEMICAL CHANGES
- Page 490 and 491:
s was determined using the device d
- Page 492 and 493:
Direct Drill (DD) Reduced Tillage (
- Page 494 and 495:
Direct Drill (DO) Reduced Tillage (
- Page 496 and 497:
Associated Soil Physical Measuremen
- Page 498 and 499:
has allowed soil changes, and surfa
- Page 500 and 501:
The changes in total N over the sev
- Page 502 and 503:
etention and minimal soil disturban
- Page 504 and 505:
Freebairn, D.M., and Wockner, G.H.,
- Page 506 and 507:
EROSION AND YIELD BENEFITS FROM RID
- Page 508 and 509:
Results Interrill Erosion The 4- an
- Page 510 and 511:
nearly level to 4% slope, (Group II
- Page 512 and 513:
Table l. In terrill erosion estimat
- Page 514 and 515:
EFFECTIVENESS OF MANURE APPLICATION
- Page 516 and 517:
a preplant broadcast application of
- Page 518 and 519:
crop productivity on eroded land is
- Page 520 and 521:
Table 3, Plant height and percent e
- Page 522 and 523:
EROSION LOSSES OF HUMUS AND PLANT N
- Page 524 and 525:
Table 2 Annual losses of humus, tot
- Page 526 and 527:
Section 8 Socio-Economic Aspects 51
- Page 528 and 529:
ON-FARM COMPARISON OF DIFFERENT TIL
- Page 530 and 531:
yield in groundnut .while the yield
- Page 532 and 533:
FIG. 1: ON-FARM TILLAGE RESEARCH RA
- Page 534 and 535:
INTRODUCTION Sudan occupies the lar
- Page 536 and 537:
along with the fact that the deep b
- Page 538 and 539:
Table 1. A yearly ana,lysis of the
- Page 540 and 541:
Table 3 Calculated field performanc
- Page 542 and 543:
0 "' .,., " '" e. = 0 " .... 5 0 "
- Page 544 and 545:
the state was divided into three zo
- Page 546 and 547:
farmers need to be educated about t
- Page 548 and 549:
REFERENCES Butzer, K.W. (1964), Env
- Page 550 and 551:
1 2 3 4 5 6 SIZE OF LAND-HOLDING (H
- Page 552 and 553:
ISO RAINFALL 76° HUMID ZONE SEMI A
- Page 554 and 555:
on highly erodible crop land which
- Page 556 and 557:
attitudes of eligible land owners t
- Page 558 and 559:
frees land owners from being requir
- Page 560 and 561:
Conservation Title programs have co
- Page 562 and 563:
Bibliography Batie, Sandra S. 1983.
- Page 564 and 565:
Napier, Ted L., Cameron s. Thraen,
- Page 566 and 567:
Figure 1: The Benefits and Costs of
- Page 568 and 569:
socially optimal nonpoi~t source po
- Page 570 and 571:
Table 1. Costs of Reducing Phosphor
- Page 572 and 573:
disutility society associates with
- Page 574 and 575:
References Abraham, Girmai. "Crop P
- Page 576 and 577:
Section 9 Modelling 569
- Page 578 and 579:
MODELLING PEA ROOT GROWTH IN COMPAC
- Page 580 and 581:
Experiment 2 In this experiment, ro
- Page 582 and 583:
25 20 Fig. 1. Elongation rate of pe
- Page 584 and 585:
two bulk densities gives an indicat
- Page 586 and 587:
CULTSA VE: A COMPUTER PROGRAM TO SE
- Page 588 and 589:
3. Existing machinery and implement
- Page 590 and 591:
traffic on seedbeds is unavoidable
- Page 592 and 593:
2. Increased awareness of environme
- Page 594 and 595:
Section 10 Tillage and Sustainabili
- Page 596 and 597:
ABSTRACT TILLAGE, MULCH AND NITROGE
- Page 598 and 599:
RESULTS AND DISCUSSION Maize grain
- Page 600 and 601:
Maurya, P.R. 1986. Effect of tillag
- Page 602 and 603:
Table 2. Water transmission charact
- Page 604 and 605:
O·C •t. O·C•t. 0·00 040 ()-6
- Page 606 and 607:
1986) • Fertilizer use efficiency
- Page 608 and 609:
ecause farmers get even lower yield
- Page 610 and 611:
TABLE 4, Harvest index of maize as
- Page 612 and 613:
TABLE 7. cowpea grain yield as affe
- Page 614 and 615:
ABSTRACT TILLAGE AND MAIZE STUBBLE
- Page 616 and 617:
Okra seeds (NHLae 47-4) were plante
- Page 618 and 619:
Table J, Treatment effects on infil
- Page 620 and 621:
Table 6, Yearly yield parameters as
- Page 622 and 623:
REFERENCES Asoegwu, S,N,, 1988, Est
- Page 624 and 625:
during the fourth year. Effects of
- Page 626 and 627:
yield, The increment in stover yiel
- Page 628 and 629:
TABLE 4. Regression equations relat
- Page 630 and 631:
TABLE 7. Repression equations relat
- Page 632 and 633:
Lal, R. and Kang, B. T., 1982. Mana
- Page 634 and 635:
SOYBEANS AND WHEAT SOIL FERTILITY R
- Page 636 and 637:
with the use of appropriate technol
- Page 638 and 639:
Another option of rotation can be d
- Page 640 and 641:
Kurtz, L.T., 1976. Fertilizer needs
- Page 642 and 643:
TABLE 1. Average nutrient needs of
- Page 644 and 645:
TABLE 3. Some grasses and legumes s
- Page 646 and 647:
INFLUENCE OF REDUCED SOIL TILLAGE O
- Page 648 and 649:
Table 3. Grain yield at 14% moistur
- Page 650 and 651:
with mineral and organic matter fer
- Page 652 and 653:
c) shallow tillage which includes e
- Page 654 and 655:
·van Doren, D, ·M,, Triplett, G.
- Page 656 and 657:
Winter cereal 1. Deep ploughing (0.
- Page 658 and 659:
REFERENCES Archettl R., Bonciarelll
- Page 660 and 661:
Table· 2 Interannual variability o
- Page 662 and 663:
dominated by kaolin with small amou
- Page 664 and 665:
RESULTS Tomatoes The Cultivated tre
- Page 666 and 667:
on the Cultivated treatment. ·This
- Page 668 and 669:
density through root and faunal act
- Page 670 and 671:
174. White, I. (1988). Tillage prac
- Page 672 and 673:
EFFECTS OF TRAFFIC COMPACTION AND S
- Page 674 and 675:
Table 2: Tillage Treitements and De
- Page 676 and 677:
Table 3 (b) Treatment· Means for M
- Page 678 and 679:
~- --~ § :x:10 b: UJ C) -l SOIL CO
- Page 680 and 681:
Tillage enhances higher yield and e
- Page 682 and 683:
DESIGN AND CONSTRUCTION OF A MACHIN
- Page 684 and 685:
3 was materially superior to the ot
- Page 686 and 687:
5 loam field. ·A set comprised of
- Page 688 and 689:
CONCLUSION 7 The results so far obt
- Page 690 and 691:
Table 1. The effect of mechanized m
- Page 692 and 693:
w :;; :;; w a. >- ... u. 0 (/) 3: w
- Page 694:
1.4 Pore Size Distribution 1.2 D .,
Inappropriate
Loading...
Inappropriate
You have already flagged this document.
Thank you, for helping us keep this platform clean.
The editors will have a look at it as soon as possible.
Mail this publication
Loading...
Embed
Loading...
Delete template?
Are you sure you want to delete your template?
DOWNLOAD ePAPER
This ePaper is currently not available for download.
You can find similar magazines on this topic below under ‘Recommendations’.