Cotton Border Technology Film Study _794

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Cotton Border Technology Film Study

0 on the right track to the last water before the water before the determination of ground temperature at 5cm (Table 6) show that the way I Irrigation average daily ground temperature higher than the furrow irrigation treatment, which may be a large surface area and furrow irrigation methods, heat and more relevant. Row spacing and size such as ground temperature differences between the less. l5 Table 5 cotton growth and development of different treatment survey section asked the total height of the number of parietal wide green bolls (a) treatment (cm) Number (Day) (film) (cm) lower middle near the top line of border irrigation, etc. 81.015.710.420.08.205.155. . Border 71.5l4.78.216.97.756.2O3.20 size 15 size line line between furrow 67.513.98.015.87.455.352.85 ground temperature will directly affect the near-surface air temperature within the group Cotton This may be the way of cotton production and Border stronger medium-term growth potential ecological reasons. Third, water-saving effect in 1991, July 5 (dihydrate), the treatment was measured by flow irrigation, and in July 15, July _23 Day (Sanshui ago) and were measured in September 10E1 the ditch, the soil moisture border irrigation, the results shown in Table 7. Table 7 groove, furrow Lei Lei water table and soil water content of soil moisture irrigation ※ () irrigation (square / mu) 15 July 23 July 10 September 7 Border 33.6725.54】 .74】 9.18 furrow 36.0823.6617.4116.30 ※ (1) irrigation standard. Furrow irrigation; flooded to 2 / 3 of the scouring depth, border t Qinei average depth of 5c Ⅱ l. (2) The district is small, groove short water a short time, so the conversion of acres of field into the net inflow of water is only 2 / 3. Table 7 shows that: 1. Border furrow irrigation less than 2.41 square / mu, water 6.7%. 2. Furrow irrigation is less in the case of irrigation, irrigation 1O days and 18 days after the soil moisture content was still slightly higher than furrow irrigation, cotton boll opening period (September 10) Border managed to maintain high soil water content than the furrow, which may border irrigation than furrow irrigation because of the small surface area, evaporation is also less reason. It was observed that growth in the late furrow of the plot by many different levels of early phenomenon, and furrow irrigation with normal cotton growth. These results show that: l Leopard Border has a saving effect. Fourth, the results of a two-year yield results showed that - furrow irrigation of seed cotton yield were higher than furrow irrigation treatment (Table 8), of which 161 in 1991, the best gift;) + Ic. v a + ∞ b I = pc. Perak Gan a summer O0H ∞ c. ∞ _ ∞ Pu Pu h Bu h hh h hh c. C. c. C. Zhang Banshigualiu Zaoyababa God seventy-seven dish Zhoumuluqun potato fields thereupon Xie § mouth. Group treatment group to Taiwan to full coverage, the size of the furrow irrigation line for the past years, such as J1990 spaced furrow irrigation. Statistical analysis showed that the yield difference between two years of treatment were asked to significant levels. Table 8 seed cotton yield management of the pregnant Border furrow treatment atlas broadcast full coverage full coverage perforated punch lines such as sowing the size of the size of the line near the line near the size of lines and other lines such as line size of the line near near-plot yield (kg) 8.678.067 average annual yield per mu 7.925.531990 .657.215.615.656.254.591991 (kg) 93.7084.59 a summary and discussion, plastic ridge furrow cotton construction means depression, pre-ridge of the furrow can give full play thermal radiation effects, accelerate the emergence rate, reduce the bad kinds, to improve seedling emergence; promote premature seedling. In the latter part of the Border is not ditching, surface area is smaller than the furrow, and thus the leakage of irrigation water and soil water evaporation less than furrow irrigation, with a significant water saving effect. The results also indicated that pre-emergence early as border irrigation method, seedlings of early, mid and late high soil moisture and ground temperature is conducive to the growth of cotton wiping, lint yield was higher. Therefore believe that it is a water-saving, an increase of irrigation methods, it is worth in cotton, especially the water shortage in cotton promotion. Second, Kwai Wa ways of supporting technology. 1. Land selection: Irrigation should be used for groundwater level is low, less salt, light texture of cotton. 2. Fine soil preparation to improve flatness of the land Qinei J shorten Maoqu spacing (in 25-35m as well), to ensure the quality and use of irrigation irrigation irrigation depth adjustment. 3. Dahon narrow stretch of central width (about 50cm), to expand the width of furrow ridge (about 7Ocm), in order to facilitate border row cultivator,[link widoczny dla zalogowanych], fertilizer operations. 4. After the cotton harvest, mechanical recycling plastic film. Third, border cotton issue to be resolved. 1. Ridge building and planting the restructuring of the joint operating machinery. (Before restructuring, after the ridge can be built first, before planting or after sowing artificial mound built way). 2. Border ridge top dressing equipment 铡 restructuring. 18