Alternative Furrow Irrigation Combined with Topdressing Nitrogen at Jointing Help Yield Formation and Water Use of Winter Wheat under No-Till Ridge Furrow Planting System in Semi-Humid Drought-Prone Areas of China
نویسندگان
چکیده
Benefiting from the high–farmland construction program in China, one–off irrigation can be guaranteed most fields semi–humid drought–prone areas China. However, little information is available on water and nitrogen (N) management wheat production under this condition. This study aimed to explore effects of alternative furrow (AFI) topdressing N fertilizer (TN) productivity a no–till ridge–furrow planting system areas. The experimental design was as follows: two (FI) methods, namely, EFI (every irrigation) AFI (alternative with 75 mm at jointing stage were set main treatments. Two patterns, NTN (0 kg ha−1 N) TN (60 along secondary Moreover, traditional practice no (NINTN) control. In 2018–2020, field experiment carried out investigate soil water, leaf chlorophyll relative content (SPAD) net photosynthetic rate (Pn), aboveground dry matter assimilates, grain yield, use efficiency (WUE) economic benefit. We found that both FI methods patterns significantly influenced content. Compared NINTN, each combination method pattern effectively improved booting anthesis stages, leading significant increase SPAD Pn leaves, post–anthesis accumulation (POA), WUE benefit winter wheat. EFI, averaged across years technique increased storage stages early milk (4.9%) dough (7.5%) POA (40.6%) its contribution (CRPOA, 27.6%), yield (10.2%), (9.1%) (9.1%). addition, compared NTN, computation by maturity, enhanced after POA, finally resulted (14.7–21.9%) (9.6–21.1%). Thus, greatest improvement characteristics, achieved AFITN treatment. Above all, it concluded 60 an strategy for optimizing formation provided new insights into improving where guaranteed.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2023
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy13051390